Messages in this thread | | | Date | Mon, 05 Aug 2013 10:47:24 +0800 | From | Alex Shi <> | Subject | Re: arch/x86/kernel/cpu/intel.c needs an update for Haswell? |
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On 08/01/2013 05:07 PM, Alex Shi wrote: > From 6fb21a9ce475cfc6c7c39bdfd3d9422be24cdb74 Mon Sep 17 00:00:00 2001 > From: Alex Shi <alex.shi@intel.com> > Date: Wed, 31 Jul 2013 16:28:42 +0800 > Subject: [PATCH 1/2] x86/tlb_flushall_shift: add Ivybridge EP CPU support > > Tested with munmap.c on Ivybridge EP 2S machine, the best shift value is > 2, that means when the tlb flush entries less than 64, single invlpg has > performance benefit on this machine. > The testcase come from: https://lkml.org/lkml/2012/5/17/59 > Results show it has about 5% to 30% performance increase. > > Signed-off-by: Alex Shi <alex.shi@intel.com> > ---
Any comments are appreciated!
-- Thanks Alex
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